CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 112,521	$ 76,174
Accounts receivable, net	97,989	95,408
Inventories, net	97,474	96,309
Prepaid expenses and other current assets	6,856	4,395
Income tax receivable	77	13
Deferred income taxes	5,048	6,167
Total current assets	319,965	278,466
Property, plant, and equipment, net	76,135	75,570
Goodwill	30,739	31,000
Intangible assets, net	24,614	26,963
Deferred income taxes	6,146	6,455
Other assets	5,471	5,279
Total assets	463,070	423,733
Current liabilities:
Accounts payable	69,991	58,498
Line of credit	0	0
Accrued compensation	40,656	38,317
Accrued sales discounts, rebates and royalties	8,097	8,539
Accrued income taxes	4,263	3,032
Deferred income taxes	0	303
Other accrued expenses	13,358	11,229
Total current liabilities	136,365	119,918
Long-term liabilities:
Deferred income taxes	8,456	9,887
Income tax payable	566	606
Other long-term liabilities	2,062	2,052
Total liabilities	147,449	132,463
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock, $0.01 par value, 50,000,000 shares authorized; 22,909,884 and 22,344,121 shares issued on December 31, 2014 and 2013, respectively	229	223
Paid-in capital	214,710	199,513
Accumulated other comprehensive income (loss)	(4,446)	2,982
Retained earnings	226,066	193,532
Stockholders' equity before treasury stock	436,559	396,250
Less cost of common stock in treasury, 7,008,475 and 6,639,497 shares on December 31, 2014 and 2013, respectively	(120,938)	(104,980)
Total stockholders' equity	315,621	291,270
Total liabilities and stockholders' equity	$ 463,070	$ 423,733